A story is told that when Rav Soloveitchik's wife Tonya, z״l, was hospitalized due to an illness, he [IE the Rav] and Haym had the run of the house. Following the technical laws of kashrut, they proceeded to eat cold milkhig food on fleishig dishes. When Tonya returned from the hospital, she was apoplectic. The Rav explained that he was doing nothing more than following the halakha of the Shulkhan Arukh, to which Tonya replied: "You and your Shulkhan Arukh are going to treif up my kitchen!"